Carb ID 1978 GS1000

[ljjeeper]

Or should i just try a dynojet kit?

[Agemax]

Or should i just try a dynojet kit?

you state that they already have a stage 3 kit in them

[ljjeeper]

you state that they already have a stage 3 kit in them

Thats what i was told by the previous owner, but so far the only thing he told me that was true about mods is that it has a kerker 4-1.

[hampshirehog]

You need to open those carbs up to see what's inside. Pointless doing anything else first.

[SVSooke]

Your PO knows nothing if he told you anything other than stock.These are close to what is on an 1100


They are the BS32's off my 85 750
This is a set of VM29's

[Agemax]

mr sooke the air jet thingy is missing from no.4 carb

[SVSooke]

mr sooke the air jet thingy is missing from no.4 carb

Whatever you say

[ljjeeper]

Whats the difference between the vm29 and vm26?

[Frank Z.]

Whats the difference between the vm29 and vm26?

Oh, about $400.00

[chuck hahn]

Those are 26s and you dont have 29s..thats the difference as I see it. Stock carbs for that bike. And dont leave that petcock on prime for any more time than it takes to prime the carbs. Notorious for leaky petcocks filling the crankcase with gas and the unsuspecting ( or uninformed ) owner fires it up and spins the crank due to water thin oil...or one of the cylinders is full of gas and as you crank it it hydrolocks and bends a rod. I would take a piece of hose and put it on the petcock in the on position. Stick the end of the hose in a clear soda bottle and let it sit overnight. In the AM see if theres any gas in the bottle. If none then the petcock is shutting off properly..if there is, then you have a leaky petcock. If you have even a .001% doubt about the petcock and it has been sitting like that on prime, I would waste the 4 quarts of oil in the engine and drain it, then perform the leakdown test as I described earlier.

[sedelen]

Whats the difference between the vm29 and vm26?

That petcock does appear to be in "Prime" position and it also appears to be the newer '82/'83 GS1100E type instead of the older one. I think the hole spacing might be different between the two.

[Big T]

That looks exacly like them. Those are the vm29's?

What would be a good starting point on tuning for the 4-1 exhaust and the pods? Or is there something else that would cause it to run rich?

Okay, you have the stock carbs. I'm guessing they're running rich because you have the "choke" partially on

You need to give them complete tear down and cleaning with new O rings per the VM tutorial

Then you can verify what jets you have in there and whether it has a Dynojet Stage 3 kit (which is not a requirement for tuning)

Oh, and you need to do the other 9 things from the "Top Ten Common Issues" list. Download a service manual from BassCliff and read through the other links on his page

Then report back

[rustybronco]

Or the fuel level is to high, the Bozo (PO) had raised the needles too high when rejetting, too big of jets were installed and (or) the carbs need a good going through after the supposed cleaning that was done to get it up for sale

[Flying Fish]

I'd also remove the in-line fuel filter, some of them actually restrict the flow of fuel. My bike had running problems when I bought it and removing the filter cured it.

[ljjeeper]

Okay, you have the stock carbs. I'm guessing they're running rich because you have the "choke" partially on

You need to give them complete tear down and cleaning with new O rings per the VM tutorial

Then you can verify what jets you have in there and whether it has a Dynojet Stage 3 kit (which is not a requirement for tuning)

Oh, and you need to do the other 9 things from the "Top Ten Common Issues" list. Download a service manual from BassCliff and read through the other links on his page

Then report back

Are these the top ten you are talking about?